baber/WOPTO huggingface dataset:
Patent GB-827038-A (GB)
Title: Improvements in or relating to loading devices for mounting on tractors or the like
Inventor: WEBSTER FREDERICK
IPC: E02F3/34
Filed: 1956-09-15
Abstract: 827,038. Shovelling machines. BROWN INDUSTRIES Ltd., D. Sept, 16, 1957 [Sept. 15, 1956], No. 29007/57. Divided out of 805,716. Class 68(1) A tractor mounted loading device which can be easily adapted for use as a frontend loader, an over loader or for light bull-dozing operations. When used as a front end loader the device consists of a pair of main lifting arms a (Fig. 1), pivoted at b to a framework c attached to the tractor. A pair of hydraulic rams d control the position of the arms. A pair of secondary arms h are pivoted to the main arms at g and the shovel i is pivoted to the lower end of the secondary arms. The linkage k, m and n imparts an automatic roll-back action to the shovel as it is raised by the main lifting arms. The shovel is tipped for emptying by extending the rams j pivoted to the secondary arms at p and to the shovel at o. For use on an over loader links n and the rams j are interchanged and tipping is then effected by extending the rams j after the arms a have been raised to a vertical position by the rams d. In a modification (Fig. 3), a rocker plate q pivoted to the secondary arms at r, is connected to the shovel by a link v and to the rams j. A plate t connected to the arms h is provided and has a projection x<SP>1</SP> which cooperates with a movable stop x to limit the position of the secondary arms h relative to the main arms a. For front-end loading operations the shovel is tipped by extending the rams j. For over loading operations the rocker q is bolted to the plate t and the rams j then swing the arms h about the pivot g. For light bull dozing operations the shovel is inverted by extending the rams j until stops y on the shovel abut projections y<SP>1</SP> on the arms h as shown in Fig. 3.
Patent GB-406953-A (GB)
Title: Hand operated bell for use on bicycles and the like
IPC: G10K1/074
Filed: 1933-10-20
Abstract: 406,953. Mechanical bells. METALLWARENFABRIK VORM. H. WISSNER AKT.-GES., Zella-Mehlis, Thuringia, Germany. Oct. 20, 1933, No. 29142. Convention date Feb. 28. [Class 13.] The pivoted toothed segment z of a bicycle &c. bell is extended through a slot s in the base u and provided with a push member k. In a modification the segment is connected to the push member by a link and the slot is replaced by a hole.
Patent GB-889329-A (GB)
Title: Improvements in or relating to dryer drums
IPC: D21F5/10
Filed: 1958-09-11
Abstract: 889,329. Hollow rollers; condensate removal. BELOIT IRON WORKS. Sept. 11, 1958 [Sept. 19, 1957], No. 29151/58. Class 34(1) Condensate is removed from a steam heated drier drum 10 through a syphon assembly rotating with the drum and comprising pipes 15, 16 and a mouthpiece 16a associated with a scoop 17. The density of the condensate passing through the pipe 16 is reduced by mixing with steam from the drum introduced through four inclined orifices 16e, 16g, 16f (one not shown) formed in the mouthpiece. This aids condensate removal in that the effect of the centrifugal force on the mixture so formed is less than the effect of the centrifugal force acting upon the condensate alone. The drum is connected to a steam supply source 'S' and a condensate disposal system 'D'.
Patent GB-339032-A (GB)
Title: Vessel and other apparatus for storing or treating nitric acid
IPC: C01B21/46
Filed: 1929-09-26
Abstract: 339,032. Frischer, H. Sept. 26, 1929. Drawings to Specification. Bodies.-In the construction of vessels or apparatus for storing, distilling or otherwise treating nitric acid and liquors containing same, the parts that are covered with liquid are made in an aluminium alloy containing magnesium, silicon &c., while the parts exposed to the fumes are made of a more resistant alloy such as ironsilicon or chromium-nickel. Alloys specified are Durion, Thermosilicid, and Antacid, which are alloys of iron and silicon containing 15-18 per cent Si.
Patent GB-714823-A (GB)
Title: Improvements relating to the production of steel bodies fitted with bearing bushes
IPC: F16C33/08
Filed: 1952-11-19
Abstract: 714,823. Making bearings. DAIMLERBENZ AKT.-GES. Nov. 19, 1952 [Nov. 19, 1951], No. 29250/52. Classes 83 (2) and 83 (4) Jointing.-A gear 2 to be bushed is provided with internal longitudinal or circumferential grooves 9, 10. An undersize bearing bush 3 is inserted and expanded to the finished size by a plug 8 with conical expanding zone.
Patent GB-655014-A (GB)
Title: Improvements relating to rotary driers or coolers
IPC: F26B11/02
Filed: 1948-11-10
Abstract: 655,014. Drying or cooling apparatus. DUNFORD & ELLIOTT (SHEFFIELD), Ltd. (Erisman, J. L.). Nov. 10, 1948, No. 29274. [Classes 34(ii) and 64(ii)] In a rotary drier or cooler comprising a rotatable cylinder 14 having therein a series of longitudinally extending, overlapping, tangential louvres 50 mounted radially inwardly of and supported by an annular series of longitudinally extending radial louvres 25 secured to the cylinder, the radial louvres are secured together at their longitudinal edges by bracing bars 27 on which are secured supporting members for the tangential louvres which are detachably secured to the latter. A series of longitudinal fluid passages 24 are formed by the radially disposed, longitudinally extending louvre plates 25 secured at one edge to the cylinder 14. The inner free-edge portions of these louvres 25 have right-angled flanges 26 on their trailing sides and are secured together by bracing bars 27 at four longitudinally spaced loca tions, each bar 27 having a flanged end 28 which is welded to the radial louvre and to a filler bar 31. Welded to each bar 27 also is a tangential supporting plate 35. The tangential louvres 50 are formed of several longitudinally aligned parts and have flanged edges 51. These louvres rest on the plates 35 and are secured by nuts and bolts 52, allowing of easy removal and replacement.
Patent GB-1170880-A (GB)
Title: Improvements in or relating to thorium-film thermionic cathodes for electrical discharge vessels.
IPC: H01J1/14
Filed: 1968-06-20
Abstract: 1,170,880. Electrode materials and processing. SIEMENS A.G. 20 June, 1968 [21 June, 1967], No. 29335/68. Heading H1D. A thorium film thermionic cathode comprises a carrier of high melting-point metal containing thorium oxide with a surface coating consisting of an inner layer of tungsten carbide and an outer layer of a high melting-point metal through which thorium can migrate and which has a higher escape energy than tungsten, e.g. osmium or rhenium, the outer layer providing the emissive surface. The carrier metal may be tungsten or a tungsten-rhenium alloy containing 5-25% by weight rhenium. The thickness of the osmium or rhenium outer layer is preferably about 5 Á to ensure an adequate supply of thorium by diffusion through the layer, i.e. a dispersing action, and also to ensure sufficient separation of the carbide layer and the emissive surface. The outer layer may be deposited on the tungsten carbide layer electrolytically or, preferably, by a non-electrical chemicallyreducing deposition from an appropriate solution.
Patent GB-252752-A (GB)
Title: Improvements in duplex telegraphy
IPC: H04L5/14
Filed: 1924-12-08
Abstract: 252,752. Heurtley, E. S., and Muirhead & Co., Ltd. March 6, 1925. Duplex telegraphs; artificial lines.-In a duplex arrangement for a loaded cable A, A<1>, including an artificial line D, D<1> for balancing the cable, a long sea earth cable B, with inductance, resistance, and capacity characteristics similar to those of the corresponding length A of the main cable, is employed. The length of the cable B preferably exceeds 10 per cent of the length of the cable A, A<1>. The sea earth may be provided with a terminal impedance b<1>, as described in Specification 198,978. A network E, connected in series with the cable A, A<1>, as described in Specifications 193,957 and 198,978, may be provided to balance the sea earth as regards resistance and capacity. The artificial line mav comprise a home section D<1> balancing the portion A of the main cable as regards resistance and capacity, and a main section D balancing the remaining portion A<1> as regards inductance, resistance, and capacity. The inductance of the section D<1> may correspond to that of the network E. Combinations of resistance and capacity or inductance may be placed in one or both of the arms C, C<1> of the bridge to compensate for frequency variations as described in Specification 228,309. The arrangement enables the use of a transmission E.M.F. not exceeding 10 volts and of high amplification e.g. 50-fold at the receiver. The term " sea-earth " is intended to include a similar distantly-earthed conductor applied to land lines. Eliminating effects of disturbing currents.- Disturbing effects may be further reduced by the use of a balanced conductor forming with the cables A, B a multi-cored cable as described in Specification 20787/11.
Patent GB-442686-A (GB)
Title: Improvements in or relating to electrical oscillation generators
IPC: H03K4/16
Filed: 1934-10-13
Abstract: 442,686. Valve generating circuits. MERDLER, L. R., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Oct. 13, 1934, No. 29387. [Class 40 (v)] Scanning oscillations for television &c. are produced by a first generator the output of which is used to impulse a second generator, the latter having a normal or free frequency slightly lower than that of the first. The first generator comprises a pair of series condensers 2 slowly charged from a voltage source through a resistance 3 and suddenly discharged through a back-coupled valve 1, as in Specification 435,196. The discharge is synchronized by pulses applied to the grid of the valve 1 through a condenser in the lead 15. The second generator 11 is similarly arranged but its circuit constants are such that as a free oscillator it would operate at a rather lower frequency than the first. It is, however, impulsed by the voltage across one of the condensers 2 applied to the grid of the valve 11. A potentiometer 13 across one of the condensers 12 of the second generator 11 has a tapping connected to the grid of an amplifier 4, the plate of which is connected to a deflecting-plate of the cathode-ray tube through a condenser 9. The series condensers 2, 12 may be more than two in number, and may be equal or unequal. When two are used in each oscillator, they may be variable and gang-controlled in such a way that the joint or series capacity of each pair remains constant. Thus the frequency remains constant but the output amplitude varies. For magnetic scanning, the resistance 5 may be replaced by a choke, the scanning-coils being connected in the plate circuit of the high-impedance valve 4.
Patent GB-1110334-A (GB)
Title: Improvements in or relating to sleeve bearings
IPC: F16C33/74
Filed: 1965-07-12
Abstract: 1,110,334. Bearings; seals. METZELER A.G. 12 July, 1965 [21 Aug., 1964], No. 29421/65. Headings F2A and F2B. A seal between two relatively angularly displaceable parts comprises an elastomeric member having an outer portion connected to a first part to form a stationary seal therewith, an annular inner portion adapted to seal against a second part under radial compression and an intermediate portion provided with a number of folds or corrugations therein whereby angular displacements between the two parts are absorbed by the seal, the inner portion of the elastomeric member forms a stationary seal with the second part but becomes a sliding seal when the angular displacement between the two parts is increased beyond a critical angle. In an embodiment, a seal for a bearing comprises a rubber &c. casing 9 and a corrugated annularshaped member 11 of resilient material having an outer periphery 10 held by the casing 9 and an inner periphery 12, resiliently urged against an extension 13 of a bearing bush 14. The latter is engaged by a bearing bush 1 which is attached to the casing 9. In use, relative oscillating movements between the bushes 14, 1 are accommodated by the corrugations in the member 11, but should the distance oscillated be excessive, sliding occurs between the inner periphery 12 of the member 11 and the extension 13 of the bush 14. An annular cap 15 is provided to protect the member 11 and is attached to the extension 13. In modifications, the corrugations may be radial or diagonal and intersecting.
Patent GB-243720-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K17/18
Filed: 1925-11-23
Abstract: 243,720. British Thomson-Houston Co., Ltd., (Assignees of Bergman, S. R.). Nov. 29, 1924, [Convention date]. Alternating-current motors; conductors; cores. -The rotor of an induction motor is provided with alternate deep and shallow slots 4, 5, the conductors in the shallow slots 5 and in the narrow top parts 7 of the deep slots 4 being connected together to form a high-resistance lowreactance .winding, and the conductors in the lower parts 8 of the deep slots being connected together to form a low-resistance high-reactance winding. To obtain uniform flux density in the teeth, the parts 10 between the shallow slots and the upper portions of the deep slots are uniform in cross section and of substantially half the cross section of the teeth between the lower parts 8 of the deep slots. A single short-circuiting ring 9 may be employed at each end of the rotor to which all the bars are connected, preferably by being cast together.
Patent GB-295593-A (GB)
Abstract: 295,593. I. G. Farbenindustrie Akt.- Ges. Aug. 11, 1927, [Convention date]. Thioindigo dyes; 2-cyano-3-methyl-5-halogen-1- thioglycollic acid. - For the production of 4- methyl-6-halogen-3-oxythionaphthenes and the corresponding thioindigo dyestuffs, 2-cyano-3- methyl-5-halogen-1-thioglycollic acid is preparcd from 1-methyl-2-amino-3-nitro-5-halogenbenzene, by way of the corresponding 2-cyano-3-nitro, 2- cyano-3-amino and 2-cyano-3-diazonium compounds. The dia.zonium compound may be converted into the thioglycollic acid by forming the xanthic ester and treating with chloracetic acid, after saponifying, or by treating with alkali sulphides, reducing to the mercaptan, and finally coupling with chloracetic acid. In an example, the former method is used, starting with 1- methyl-3-cyano-3-amino-5-chlorbenzene, which is obtained from 1-methyl-2-amino-3-nitro-5-chlorbenzene by replacing the amino group by the cyano group and reducing. Specifications 11173/06, 5589/08. 17417/14, 18292/14 and 288,986 are referred to.
Patent GB-926235-A (GB)
Title: Catalyst and the production thereof
IPC: B01J23/755
Filed: 1960-08-26
Abstract: A supported metal catalyst, the metal being Ni, Co, Cu, Mn, Pt, Pd, Hg, Cd, Au or Zn, is prepared by forming an aqueous solution of metal ammine carbonate, the latter having at least 2 moles NH3/gm -atom metal, suspending an inert carrier such as kieselguhr in the solution, adjusting the NH3 and CO2 contents of the solution to cause a basic metal carbonate to precipitate on the carrier, calcining the mixture of basic carbonate and carrier to form a supported metal oxide and at least partially reducing the latter to metal.  The preparation of nickel catalysts is exemplified but the method may also be used for producing composites containing two or more of Ni, Co, Cu and Zn, e.g. Ni+Co.  The catalyst may be stabilized by treatment with CO2 containing controlled quantities of oxygen; it is highly active towards atmospheric oxygen unless so treated or otherwise protected.  The ammine carbonate solution may be formed, for example, by dissolving Ni in an aqueous solution containing 6-15 wt. per cent NH3 and 2-10 wt. per cent CO2 in contact with an oxygen containing gas and separating the solution from insoluble materials. The catalysts are used to hydrogenate cotton-seed oil, but are stated to be applicable to the hardening of oils and fats generally.
Patent GB-744215-A (GB)
Title: Improvements relating to suction cleaner brushes
IPC: A47L9/06
Filed: 1953-10-27
Abstract: 744,215. Suction cleaners. HOOVER, Ltd. Oct. 27, 1953 [Oct. 31, 1952], No. 29724/53. Class 8(1). A suction cleaner brush comprises a back 10 having an outer ring of bristles 12 and an inner ring 13, the bristles 12 being more flexible than the bristles 13 by being made of more flexible material or of less cross sectional area than the bristles 13. The brush has an opening 15 and a flexible shroud 20 and is fitted into a flexible coupling 11 of triangular shape the ends of the bristles 12, 13 lie in parallel planes and the roots lie in planes which may be at an angle to the first planes. The axis of the socket 21 passes through the longest bristles which are towards an apex of the coupling which forms the front of the brush.
Patent GB-1431907-A (GB)
Title: Mould
IPC: B28B7/02
Filed: 1972-06-26
Abstract: 1431907 Collapsible mould walls GO-CON CONCRETE Ltd 22 June 1973 [26 June 1972] 29740/72 Heading B5A A mould wall unit comprises upper and lower elongate members 12, 13 movable relative to one another by a liquid- or air-fed piston-andcylinder 8, 7. When the upper member 12 is pushed upon, a blow-off valve 17 releases liquid to a reservoir 18 (or air to the atmosphere) when a predetermined pressure is applied to the cylinder by member 12, to allow the member 12 to drop. The lower member 13 is attached to a U-shaped support 4 sitting on a mould base (1) (see Fig. 1, not reproduced). The upper member 12 is removably attached to an inverted U- shaped support 5, the two supports being interconnected by flexible diaphragms 11 or overlapping plates. A mould wall can be constituted by several wall units. In use a mould is defined by a base (1) and plurality of the wall units, and all the cylinders 7 are connected in series, with their pistons having circular or elongate crosssections. Liquid or air is pumped to one inlet 15 to raise the upper member 12 and hold this raised by a closed inlet valve. The blow-off valves 17 operate to allow the upper member 12 to drop, during pressing of concrete in the mould. Reference has been directed by the Comptroller to Specification 1,236,927.
Patent GB-171600-A (GB)
Title: Improvements in apparatus for manoeuvring ships and aircraft
IPC: B63H25/38
Filed: 1920-10-21
Abstract: 171,600. Rees, E. S. G. Oct. 21, 1920. Addition to 159,927. Propelling, steering, and manoeuvring by water jets; propeller guards; rudders.-The pallets of augmenter tubes of the kind described in the parent Specification are formed with bulges which act as nozzles in conjunction with the walls of the tube. The pallets b, Fig. 1, are pivoted at c and have at the front a bulge d with flat portion d' adapted to contact with the walls a of the augmenter tube in the full ahead position, and have, at the rear, lips d<2> which contact in the astern position. The walls a of the augmenter tube may have a beaded edge a<1 >which coacts with the bulge to form a more efficient nozzle when manoeuvring.
Patent GB-838533-A (GB)
Title: Improvements relating to speed governors
IPC: G05D13/00
Filed: 1956-10-02
Abstract: 838,533. Fluid-pressure servomotor control systems. GREEN, G. W. A., and FOX, G. B. Dec. 24, 1957 [Oct. 2, 1956], No. 29994/56. Addition to 788,546. Class 135. The fluid-operated speed governor set forth and claimed in the parent Specification is modified by the incorporation into the governing circuit of a servo-mechanism to increase the governor output so that a governor small in construction may effectively control a large prime mover, the said servo-mechanism including a servo piston having a hollow rod in which works a pilot valve. As shown, the parts of the governor are comprised in a single housing, wherein the engine driven pump 1 delivers pressure liquid to the upstream side of the two flow resistances in series constituted respectively by the adjustable spring-loaded plunger valve 2 and the manually adjustable valve 6. This upstream pressure is applied to the lefthand side of a spring-loaded pilot valve T, U working in the hollow piston rod G of a servo piston H, the other side of the pilot valve being subject to a constant servo pressure maintained in the space 27, which is connected to the downstream side of the valve 6, by the loading valve 15. This loading valve passes excess pressure liquid back to the pump suction via a space 20, passage 21 and the left-hand side of servo piston H. Servo pressure is admitted to the right-hand side of servo piston H through ports Q in the piston rod G and exhausted to the pump suction through ports P, the piston rod being connected to the torque controlling member 22 of the prime mover which is spring loaded as shown in the direction to reduce the torque. The pilot valve T, U may also act as a relief valve to by-pass the pump discharge direct to suction. A tapered flat or groove 30 on the piston rod affords restricted communication between the spaces subject to the working pressure and the suction pressure respectively. An adjustable restricted connection constituted e.g. by a manual plug cock 31 may also be provided bypassing the two flow resistances 2 and 6.
Patent GB-738471-A (GB)
Title: Automatic change-speed device
IPC: F16H61/02
Filed: 1953-10-30
Abstract: 738,471. Change-speed gearing. WEYMANN, C. T. Oct. 30, 1953 [Oct. 31, 1952; Oct. 27, 1953], No. 30054/53. Class 80 (2). Electromagnetic or electrically - operated change-speed gearing is automatically controlled by a number of two-way centrifugallyoperated switches 1, 2, ..., Fig. 1, one less than the number of forward speeds, mounted on a member 8 rotating with the output shaft of the gear. At low speed, the movable contacts m of the switches are in the position shown, the circuit connections being such that the electromagnet 11 for first speed is energized. As the speed rises, contact m of switch 1 moves into its other position at a first predetermined speed to de-energize magnet 1<SP>1</SP> and energize magnet 21 for second speed; then, at a second predetermined speed, contact m of switch 2 moves into its other position to de-energize magnet 2<SP>1</SP> and energize magnet 3<SP>1</SP> for third speed, and so on. The movable contact m of each switch is controlled through a plunger 9 by a centrifugally-acting spring blade 10, which may be loaded by a weight and may have an adjusting screw. The gear may be controlled manually when required by a rotary contact arm 12 co-operating with contacts I, II, III... for the forward speeds, contact R for reverse, contact O for neutral, and contact 13 for the automatic control. Where, as in epicyclic gearing, two magnets are to be energized for each speed, the arm 12 is a double one and additional contacts are provided, or the contact m of each centrifugal switch may, in each of its two positions, co-operate with a pair of contacts. The blade spring 10 of each switch may have a lost-motion connection 42, 43, Fig. 7, with its contact m, so that the speed for each upward gear change is higher than that for downward change. In Fig. 9, two sets of centrifugal switches are provided, operating at different speeds, and one or other set is selectively brought into circuit by a two-way switch 63, which may be controlled manually or by depression of the accelerator pedal beyond a certain position.